What does RCA mean in cardiology?
right coronary artery
The right coronary artery (RCA) is one of the two main coronary arteries that supply the heart with oxygenated blood.
What does ostial mean in cardiology?
An ostial lesion is defined as a lesion which begins within 3-5 mm of the origin of a major epicardial artery. Ostial lesions represent a challenge to the interventional cardiologist because they often involve the wall of the aorta, they are often calcified, they may not fully dilate and they are prone to restenosis.
What is ostial right coronary artery?
The ostia of the left and right coronary arteries are located just above the aortic valve, as are the left and right sinuses of Valsalva. Function: Oxygenated blood is pumped into the aorta from the left ventricle; it then flows into the coronary artery ostia.
What is RCA in angiography?
The right coronary artery (RCA) is a coronary artery with a single origin near the right semilunar cusp of the aortic valve that bifurcates (branches) to supply the right ventricular free wall through the acute marginal branches), the inferior wall of the left ventricle through the posterior descending artery, and the …
What is RCA and lad?
The left anterior descending artery gives off the diagonal branches. The RCA supplies blood to the right side of the heart. The LMCA supplies blood to the left side of the heart. The LAD provides blood to the anterior ventricular septum and the greater portion of the anterior portion of the left ventricle.
What is proximal RCA?
The segment of the RCA from the ostium to the origin of the first acute marginal artery is usually referred to as the proximal RCA. Dominance refers to whether the posterior descending artery (PDA) originates from the RCA (right dominant), LCx (left dominant), or both (codominant).
What does ostial mean in medicine?
: a mouthlike opening in a bodily part (such as a fallopian tube or a blood vessel)
What causes ostial stenosis?
While most commonly due to atherosclerosis, it may also be caused by aortic arteritis, congenital webs or post-surgical complications following aortic valve replacement. Three cases of lethal ischemic heart disease are reported where occult ostial narrowing/occlusion was first identified at autopsy.
What is ostial lad?
Abstract. Background: Ostial disease of the left anterior descending (LAD) or circumflex (LCX) coronary artery is a challenge for the interventionalist. Focal ostial stenting may result in incomplete lesion coverage or plaque shift into the adjacent vessel, creating left main equivalent disease.
What is distal RCA?
In right dominance, the distal RCA at the level of the crux of the heart typically bifurcates into the PDA and a posterolateral branch. The PDA courses in the posterior ventricular septum giving origin to the SA nodal artery and posterior ventricular branch. In left dominance, the PDA originates from the distal LCx.
What does RCA dominant mean?
In a right-dominant circulation, the right coronary artery (RCA) supplies the posterior portion of the interventricular septum and gives off the posterior descending artery. This contrasts with a left-dominant circulation, in which the left circumflex (LCX) artery supplies this territory.
What is the distal RCA?